Envelop.



nanna rnancois irmnr, or f1 'Envianos Lie/inra. evacuation of Letters raient. Patenten nar. so, isis.

l l `Application filed November 3'0, 1914. Serial No. 874,889.

To all whom it may concern.' .cent to its lower edge. rlhe flap D isalso Be it known that l, HENRY Francois provided near its edge with an adhesive ele- FLINT, a citizen of the United States, rement of substantially rectilinear form. Siding at Omaha, in the county of Douglas The flap C is provided at its terminal s- 5 and State of Nebraska, have invented certain with a 'pair of opposed fingers or hooks c c, new and use-ful Improvements in Envelops, these being of curved form and inwardly of which the following is a specification. convergent so that when the flap C is folded Thisl invention relates to an improvement with its end covering the end of flap B, the

in envelops of the class having interlocking adheslve part d of the last named flap will es flaps, each 'envelop being soA constructed that be encircled or nearly so, by the hooks or finafter being sealed, one of the flaps may be gers c c, the distance f between the ends of withdrawn, these envelops being used gensaid hooks preferably being only one-fourth erally for the purpose of effecting a saving of the diameter of the area d of the flap B; in the cost of postage.' and the parts are so arranged that when 70 One of the objects of the invention is to these two lapsvare folded as described, the provide an envelop so constructed that one of fingers or hooks c c will be disposed adits flaps will automatically become caught in jacent to a terminal of the line or rectilinear interlocked relation with other parts or adhesive area b of said flap B. intermediate elements ofthe envelop in such a manner the two adhesive areas of. said flap. In this 75 ythat it will provide a more than ordinary reconnection it may be stated that the circusistance to the stresses directed thereto by `lar area d of flap B operates as a stop memthe contents of the envelop. ber in combination with the 'corresponding Another object is to provide such a constop member d of laD D- When the flap D struction that, while the movable or interis folded upon flaps B C, its circular adhe- Si@ locked flap maybe manually withdrawn sive area dvwill register with the adhesive from the stop or holder, it cannot be replaced area b of flap B; and it will be seen that, in a'manner to escape detection. while the fingers or hooks c c will not be diseher and minor objects relate `to features posed in contact with any adhesive subof construction permitting all of the flaps to stance, they will' be caught b y the adhering c5 be opened before sealing, a greater4 uniformparts d of the flaps B and D, when the flap ity in the shape of the flaps to present a more D has-been disposed in folded relation, as deattractive appearance, economy in manufacscribed. ture, anda novel arrangement or disposition According to the present construction, the of the adhesive areas on one of the flaps contents of thelttermay bedisposed upon 90 which abut upon the pair of hooks employed. the part A before the flaps B C D are folded With the'uforegoing objects in View the inif desired, or thereafter, but in either invention presents anovel construction, combi- Stance, after the flap D has been folded, as nation and arrangement. of parts as described last explained, the top flap is then to be fold-I herein and claimed, and as illustrated in the ed, and its adhesive area g will adhere or en- '95 4c drawing, wherein the single figure is a side` gage with the outer sides of flaps B and D. view of an envelop embodying my inven- Among some of the advantages to be detion, the pair of side flaps being folded. .rived b use of the invention, it may be Referring now tothe drawing for a more stated t iat the fingers c c will be caught or particular description, A indicates the front interlocked with the flapsB D without any w@ of the envelop, the respective right and left attention of the operator, since the adhesive side flaps being indicated at B and C; and D members d of said flaps VB and D will be and E respectively indicate the bottomand connected to form the stop mentioned. Also top flaps, the folding of the paper sheet bethe fact that the terminal of -the rectilinear ing on the lines a to form the rectangular Aarea b of flap B is disposed near or adjacent 5o front A. to the element al of said flap, operates mal lAs plainly shown in the drawing. the Hap terially to reinforce the holding means for B, near its terminal, is provided with an elethe lingers or hooks c c and normally to ment d, this being an adhesive substance maintain them in a compressed condition referably of circular area, and also said flap when the flap D has been folded with its ad- 55 is'provided w-'thzan adhesive element b conhesive areas connected with the adhesive f sisting of a. lire or rectilinear area adjaareas of the flap B. It will be noted that,

while the flap C is not engaged by any adhesive element of the other flaps, the elements c c will resist to great advantage any outward pressure directedv to it from the placed, since the curved fingers will lnot pass the stop el, as would be required when moved inwardly for replacement, and therefore the device isoperative to advantage as tending to vprevent tampering byinquisitive or unofficial persons. Y l

It is believed that, on. account of the features last mentioned, the advantages of the device will be appreciated by users of en-- v velops of thisclass, as compared with envelopswhere a single, curved finger is employed for the removable flap, since the use of a single finger does not prevent the oontents of the envelopfrorn bein examined by inquisitive persons without etection, that form of iap after being -withdrawn for that purpose permitting it to be moved in wardly to its original position.

It Will be noted that the areas b i of*v flaps B and D are each provided at its inner end with an expanded part or comparatively broad-head X withA a concaved terminal corresponding to the curvature of the fingers avc which lie between the elements as and the circular adhesive elements. d, and when the envelop has been sealed ready for delivery the adhesive parts mentioned tend tok prevent a movement of the fingers 'c c in any direction.

It is considered that one .of the advan tages in the present construction, is lthe fact that the connection of the circular, adhesive parts d of iaps B and D is located, when the envelop has been sealed, substantially midway between the longitudinal edges of said envelop, and therefore the fingers c c, when caught between the heads a: and the elements d of the aps B and D, will resist the stresses directed thereto more 'effectively than if located near one of said longitudinal ed es.

claim:

1. An envelop comprising a sheetbent to provide a rectangular front, a bottom flap and a pair of side flaps, adhesive areas disposed on the outer surface adjacent to the end of one of the side flaps,.the other side .flap being provided with a pair of curved hooks adapted to be ldisposed between the adhesive areas and to substantially encircle one of said areas, said bottom flap being provided with adhesive areas and adapted to be folded to overlap the side aps for connecting its adhesive areas with the adhesive areas of said side flap.

2. -An envelop comprising a sheet bent to provide a rectangular front, a sealing flap,

a bottom flap, a first side Hap and a second side ap, the irst side ap being provided near its terminal with a circular adhesive area and adjacent thereto with ,a secondary adhesive area having a concaved terminal,

the second side Hap being provided with a pair of curved hooks adapted to be disposed between the' circular adhesive area and the concaved terminal of the secondary adhesive area of the rst side flap, said bottomV Hap being provided with a circular adhesive A area and adjacent thereto'vvith a secondary adhesive area having a concaved term1nal and adapted to be disposedv to overlap the side aps for connecting its circular and secondary adhesive .areas respectively with the circular and secondary adhesive areas of the first side flap, the sealing ap being provided with an adhesivearea and adapted to be- A disposed to overlap the bottom flap and side' iaps lfor ai connection of its 'adhesive area with said bottom flap'and the first side flap.`

i Y HENRY FRANCOIS FLINT.

Witnesseszl B. ',B. STERN,' CrARLns S. GALE.

- cogne; of this patent may be obtained :crave cent; each, byiammngu "ammisione: d1 ranma',

y wuhingtonm. U. 

